code: def test_read_from_json_handles_columns_with_duplicate_normalizations(
      self,
  ):
      json = {
          "question": [],
          "columns": ["# of votes", "% of votes"],
          "cells": [["1", "2"], ["3", "4"]],
      }
      graph = TableQuestionKnowledgeGraph.read_from_json(json)
      neighbors = set(graph.neighbors["fb:row.row._of_votes"])
      assert neighbors == set(["fb:cell.1", "fb:cell.3"])
      neighbors = set(graph.neighbors["fb:row.row._of_votes_2"])
      assert neighbors == set(["fb:cell.2", "fb:cell.4"])
      neighbors = set(graph.neighbors["fb:cell.1"])
      assert neighbors == set(["fb:row.row._of_votes"])
  
imports: from __future__ import absolute_import
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data import Token
  from allennlp.semparse.contexts import TableQuestionKnowledgeGraph
label_desc: Use image node_id 16 for calling the TestTableQuestionKnowledgeGraph obj's underlying member method code with example usage: obj.test_read_from_json_handles_columns_with_duplicate_normalizations() without return types